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ISSN : 1225-4517(Print)
ISSN : 2287-3503(Online)
Journal of Environmental Science International Vol.27 No.11 pp.1023-1028
DOI : https://doi.org/10.5322/JESI.2018.27.11.1023

Synthesis and Characteristics of 2 Step-curable Shape Memory Polyurethane

Geon Ho Noh, Seungjae Lee, Seong-Guk Bae, Seong-Ho Jang, Won-Ki Lee
Department of Polymer Engineering, Pukyong National University, Busan 48547, Korea
1)Korea Institute of Footwear & Leather Technology, Busan 47154, Korea
2)Department of Bioenviromental Energy, Pusan National University, Miryang 50463, Korea
*Corresponding author: Won-Ki Lee, Department of Polymer Engineering, Pukyong National University, Busan 48547, Korea Phone : +82-51-629-6451

Abstract

Shape memory materials are widely used in high-tech industries. Although shape memory polymers have been developed, they have a disadvantage, only unidirectional resilience. Shape memory polymers with bi-directional recovery resilience have been actively studied. In this study, a bidirectional shape memory polyurethane was synthesized using poly(ε-caprolactone) diol, methylene dicyclohexyl diisocyanate, and hydroxyethyl acrylate. The first physical curing occurred between hard segments and hydrogen bondings when the solution was dried. The second curing in acrylate groups was performed by UV exposure. A degree of curing was analyzed by infrared spectroscopy. The shape memory properties of 2 step-cured polyurethanes were investigated as a function of UV curing time.

2단계 경화형 형상기억 폴리우레탄의 합성 및 분석

노건호, 이승재, 배성국, 장성호, 이원기
부경대학교 고분자공학과, 1)한국신발피혁연구원, 2)부산대학교 바이오환경에너지학과

초록

 

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